had a good upbringing, i had a good education. it was all good, pretty much. andrew leuchter: one way of thinking of depression is that we all have a normal mood regulating mechanism and we all go up and down, but it's when you get stuck down, it's not just that you've gone down, but you go down and you stay down for weeks. i was an adolescent, somewhere around 11 or 12, and i can remember sitting in our living room in the dark, and just not really wanting to communicate with anybody, not wanting to say anything, just-- and i would have these thoughts that said, "they don't really love you. they don't like you. you're not worth anything," and they were just over and over. and i just began to retreat and thought, "well, i'll just be quiet." andrew leuchter: if somebody comes in a stressful life situation, they have a depression, they say, "doctor, this has never happened to me before." we treat them, they get well and they stay well. unfortunately, many patients have had a previous episode and will go on to have huger episodes. once one has had a single episode of depression, the lifet